Fishery View Improvement of Time Series Line Chart Visualization of Fishery Data

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Fishery ViewImprovement of Time Series Line
Chart Visualization of Fishery Data

• CPSC 533C
• Final Presentation
• Ying Zhang Lan Wu
• December 19th 2005

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Background

• Ecopath Line chart system developed by UBC
  Fishery Department

No fish is an island
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Motivation

• Too many time series gathered
• Curves overlapping and information overload

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Data

• Focus 45 fishes
• The diet matrix
• (45 by 45 mat)
• Their population at
• 648 discrete time
• points before and
• after fishing
• strategy applied
• (two 45 by 648 mat)

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Task and Infovis Solution 1

• Task Find the related fishes of a specific fish
• Solution Brushing and highlighting

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Task and Infovis Solution 2

• Task Evaluate the effect of humans fishing
• Solution Difference graph

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Task and Infovis Solution 3

• Task Find the patterns fish populations match
• Solution Clustering

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High Level Implementation

• Programming Platform Visual Studio.Net
• Graphics Package Zedgraph
• Clustering Algorithm
• Distance Measure
• (Root Mean Square)

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Demo coming
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Unfinished/Future Work

• Repeated Colors
• Overlapping reduced but still not eliminated
• Code Optimization
• More user interaction

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Lessons learned

• Understanding users preferences
• Developing based on an existing framework or
  using a visualization package

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Thank you ! ?